<template>
	<div class="login_container">
		<div class="login_box">
			<!-- 头像区域 -->
			<div class="avatar_box">
				<img src="../assets/logo.png" alt />
			</div>
			<!-- 登录表单区 -->
			<el-form
				:model="loginForm"
				:rules="loginFormRules"
				ref="loginFormRef"
				label-width="0px"
				class="login_form"
			>
				<el-form-item prop="username">
					<el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
				</el-form-item>
				<el-form-item prop="password">
					<el-input v-model="loginForm.password" prefix-icon="iconfont icon-mima" type="password"></el-input>
				</el-form-item>
				<el-form-item class="btns">
					<el-button type="primary" @click="submitLoginForm">登录</el-button>
					<el-button type="info" @click="resetLoginForm">重置</el-button>
				</el-form-item>
			</el-form>
		</div>
	</div>
</template>

<script>
export default {
	data() {
		return {
			// 表单数据绑定对象
			loginForm: {
				username: "admin",
				password: "123456"
			},
			// 表单验证规则对象
			loginFormRules: {
				username: [
					{ required: true, message: "请输入登录名称", trigger: "blur" },
					{ min: 3, max: 12, message: "长度在 3 到 12 个字符", trigger: "blur" }
				],
				password: [
					{ required: true, message: "请输入登录密码", trigger: "blur" },
					{ min: 3, max: 12, message: "长度在 3 到 12 个字符", trigger: "blur" }
				]
			}
		};
	},

	methods: {
		submitLoginForm () {
			this.$refs.loginFormRef.validate(async valid => {
				if (!valid) return;
				const { data: res } = await this.$http.post("login", this.loginForm);
				console.log(res);
				if (res.meta.status !== 200) return this.$message.error("登录失败");
				this.$message.success("登录成功");
				// 将token保存到客户端的sessionStorage中
				window.sessionStorage.setItem("token", res.data.token);
				this.$router.push("/home");
			});
		},
		resetLoginForm() {
			this.$refs.loginFormRef.resetFields();
		}
	}
};
</script>

<style lang="less" scoped>
	.login_container {
		background-color: #2b4b6b;
	}
	.login_container {
		height: 100%;
	}
	.login_box {
		width: 450px;
		height: 300px;
		background-color: #fff;
		border-radius: 3px;
		position: absolute;
		left: 50%;
		top: 50%;
		transform: translate(-50%, -50%);
		.avatar_box {
			height: 130px;
			width: 130px;
			border: 1px solid #eee;
			border-radius: 50%;
			padding: 10px;
			box-shadow: 0 0 10px #eee;
			position: absolute;
			left: 50%;
			transform: translate(-50%, -50%);
			background-color: #fff;
			img {
				width: 100%;
				height: 100%;
				border-radius: 50%;
				background-color: #eee;
			}
		}
	}
	.btns {
		display: flex;
		justify-content: flex-end;
	}
	.login_form {
		position: absolute;
		bottom: 0;
		width: 100%;
		padding: 0 20px;
		box-sizing: border-box;
	}
</style>
